BrominationesI,3 several coumarins has been effected of with Py-Br in presence of e free hydroxyl group, which has been found to activate the other positions vulnerable to bromination along with the 3-position. Bromination solely in 3-position requires protection of phenolic groups either as acetates4 or earbonates3; such protection, however, fails with 6-methoxy-7-acstoxyconmains6
The evidences for the possible enzymatic transfer of acetyl groups (catalyzed by a transacetylase lo...
The Reactivity of the Methylene Group in Coumarin-4-acetic Acids and their Esters. Condensation with...
The rates of the reactions of tetraalkyltins (R4Sn) with bromine in dimethylformamide and acetic aci...
6-Hydroxy-4-methylcontnarin and its Methyl ether have been brommated and mono, di-and tribromo deriv...
By the action of bromine on coumaric, 4-methylcoumaric and 5-nitrocoumaric acids in boiling glacial ...
Department of Physical Chemistry, University of Madras, Madras-25. Received 7 September 1971 The R...
7-Hydroxy-4-methylcoumarin, 7-hydroxy-4-methylcoumarin-6-carboxylic acid methyl 7-hydroxy-4-methylco...
A number of 3-(3-pyridyl) coumarins with and without 4-methyl substituent have been prepared followi...
Reactivity of the Methylene Group in Coumarin-3- acetic Acids. Condensation with Aromatic Aldehydes
Reactivity of the Methylene group in Coumarin-4-acetic acids. Part II. Condensation with aromatic al...
Reactivity of the Methylene Group in Coumarin-4-acetic Acids. Part III. Condensation of 7-Methylcoum...
Regioselective syntheses of 3-arylcoumarins possessing a bromine substituent either on the 3-aryl ri...
Department of Chemistry, M. S. University of Baroda, Baroda Received 22 October, 1971 Kostanecki-R...
Action of Chlorine and Bromine on Coumarin-4-and Coumarin-3-acetic Acids : Coumarin-3- and -4-haloge...
In methyl alcoholic solution coumarin reacts with mercuric acetate to form 3:6:8-triacetoxymercuri-4...
The evidences for the possible enzymatic transfer of acetyl groups (catalyzed by a transacetylase lo...
The Reactivity of the Methylene Group in Coumarin-4-acetic Acids and their Esters. Condensation with...
The rates of the reactions of tetraalkyltins (R4Sn) with bromine in dimethylformamide and acetic aci...
6-Hydroxy-4-methylcontnarin and its Methyl ether have been brommated and mono, di-and tribromo deriv...
By the action of bromine on coumaric, 4-methylcoumaric and 5-nitrocoumaric acids in boiling glacial ...
Department of Physical Chemistry, University of Madras, Madras-25. Received 7 September 1971 The R...
7-Hydroxy-4-methylcoumarin, 7-hydroxy-4-methylcoumarin-6-carboxylic acid methyl 7-hydroxy-4-methylco...
A number of 3-(3-pyridyl) coumarins with and without 4-methyl substituent have been prepared followi...
Reactivity of the Methylene Group in Coumarin-3- acetic Acids. Condensation with Aromatic Aldehydes
Reactivity of the Methylene group in Coumarin-4-acetic acids. Part II. Condensation with aromatic al...
Reactivity of the Methylene Group in Coumarin-4-acetic Acids. Part III. Condensation of 7-Methylcoum...
Regioselective syntheses of 3-arylcoumarins possessing a bromine substituent either on the 3-aryl ri...
Department of Chemistry, M. S. University of Baroda, Baroda Received 22 October, 1971 Kostanecki-R...
Action of Chlorine and Bromine on Coumarin-4-and Coumarin-3-acetic Acids : Coumarin-3- and -4-haloge...
In methyl alcoholic solution coumarin reacts with mercuric acetate to form 3:6:8-triacetoxymercuri-4...
The evidences for the possible enzymatic transfer of acetyl groups (catalyzed by a transacetylase lo...
The Reactivity of the Methylene Group in Coumarin-4-acetic Acids and their Esters. Condensation with...
The rates of the reactions of tetraalkyltins (R4Sn) with bromine in dimethylformamide and acetic aci...
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